Packaging box



FIG. 1 is a perspective view of a packaging box;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a top view thereof in an opened state;

FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 3; and,

FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 3.

The broken lines depict environmental subject matter only and form no part of the claimed design. The dot-dash chain lines depict a boundary of the claimed subject matter and form no part of the claimed design. The gray shading represents a surface having the contrast in appearance shown. 

CLAIM The ornamental design for a packaging box, as shown and described. 